Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 77 - Laboratory Certification
Subchapter II - Milk and Food Laboratories
Section ATCP 77.20 - Milk and food laboratories; procedures

Universal Citation: WI Admin Code ยง ATCP 77.20

Current through August 26, 2024

(1) TEST METHODS. An operator who performs any test listed under s. ATCP 77.02(1) and (2) shall perform that test according to methods specified in applicable reference materials under sub. (2), or according to methods which the department approves in writing.

(2) REFERENCE MATERIALS.

(a) General. An operator who performs any test listed under s. ATCP 77.02(1) or (2) shall keep, at the certified laboratory, the manufacturer's complete operating and maintenance instructions for equipment used to perform that test.

(b) Milk tests. An operator who performs any test listed under s. ATCP 77.02(1) shall keep the following reference materials at the certified laboratory:
1. The FDA 2400 series laboratory evaluation forms for that test.

2. The "Standard Methods for the Examination of Dairy Products," 17th edition, published by the American Public Health Association.

(c) Food tests. An operator who performs any test listed under s. ATCP 77.02(2) shall keep or have online access to all of the following reference materials at the certified laboratory:
1. The authoritative reference manual, if any, that applies to each type of food testing for which the laboratory is certified.

2. The "Compendium of Methods for the Microbiological Examination of Foods," 4th edition, published by the American Public Health Association.

3. The FDA "Bacteriological Analytical Manual," current on-line edition, if the operator performs a microbiological test on food.

Note: Copies of "Standard Methods for the Examination of Dairy Products" and "Compendium of Methods for the Microbiological Examination of Foods" are on file with the department and the legislative reference bureau and may be obtained from the "APHA Bookstore" at http://secure.apha.org/iMIS/APHA/Store.

Copies of the "Bacteriological Analytical Manual" are on file with the department and the legislative reference bureau and may be viewed online at http://www.fda.gov/Food/FoodScienceResearch/LaboratoryMethods/ucm2006949.htm.

(3) CULTURE MEDIA. Culture media used for any test listed under s. ATCP 77.02(1) or (2) shall be effectively sterilized before they are used. Culture media shall be autoclaved for the total cycle time and sterilization time specified by the media manufacturer or by the applicable test method under this section.

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